Answer:
Step-by-step explanation:
The trigonometric function;
has zeroes at
where
is an odd integer.
The trigonometric function; . This also has zeroes at
where
is an odd integer.
What is the value of x in 15x-10= 20
2 answers:
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Answer:
Step-by-step explanation:
Key to this method is remembering that
So, if you divide the coefficient of x by 2 and square it, that will complete the square. With that in mind, things are easy.
6/2 = 3, so add
So, c=9
Similarly, for the other two,
You don't really have to worry about the sign, since squaring will always make it positive
Answer:
3^2 + x^2 = 9^2
9 + x^2 = 81
x^2 = 72
x = , which is about 8.5
Cosine X = 3/9
Cosine X = 1/3
angle x= 70.5
If angle x= 70.5, angle z = 19.5 degrees.
Let me know if this helps!